How many movies have Issei Futamata and Motoko Hiraishi collaborated on?

They have worked on 3 movies together! Their first movie together was Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (1988) and was their highest rated movie together. They have not worked together since Urusei Yatsura: Always My Darling (1991). They are most known for their animation films together.